HandyBikes USA also has Derbi engine covers. I just go some grey ones.http://www.handybikes.com/store/index.php?main_page=advanced_search_result&search_in_description=1&keyword=derbi+crankcase:http://www.handybikes.com/store/index.php?main_page=advanced_search_result&search_in_description=1&keyword=derbi+crankcase